9/16" standard shaft: with 9/16" mandrel

Patented ROCKKRBOS technology: With the patented ROCK FIT closure system

【TAC polarized lenses or PC photochromic lenses】TAC polarized lenses filter reflected light or glare from the road

suitable for road bikes

【Frameless Design】The wide lenses of the ROCKBROS sports glasses provide a wider field of vision and ensure that your vision is not blocked

ROCKBROS Fahrradhelm mit integrierter abnehmbarer Magnetbrillen & Visier Color:Violet 9/16" standard shaft: with 9/16"Magnetic lenses: Magnetic lenses improve clarity and contrast. Ultralight: Weighs only 281 grams each. Removable brim: The helmet has a removable brim and a removable lining. Wide adjustment range: L : 58 61cm. XL: 58 65cm. Use this knob to adjust the circumference of the helmet. Chin pad: The chin pad and adjustable straps provide you with additional comfort.